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(11)

EP 3 005 519 A1

(12)

(43) Date of publication: 13.04.2016 Bulletin 2016/15 (21) Application number: 13727614.3 (22) Date of filing: 07.06.2013

(51) International Patent Classification (IPC):  H02J 3/32(2006.01) H02M 7/49(2007.01) H02J 3/18(2006.01) (86) International application number: PCT/EP2013/061843 (87) International publication number: WO 2014/194968 (11.12.2014 Gazette 2014/50)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: ABB Technology Ltd. 8050 Zürich (CH)	(72) Inventors: DIJKHUIZEN, Frans S-726 31 Skultuna (SE) NAMI, Alireza S-722 16 Västerås (SE) ZELAYA DE LA PARRA, Hector S-722 46 Västerås (SE) TOWNSEND, Christopher Newcastle 2289 (AU) (74) Representative: Ahrengart, Kenneth  ABB AB Intellectual Property Ingenjör Bååths gata 11 SE-721 78 Västerås SE-721 78 Västerås (SE)